The specific operation is as follows:

1. Fold the square colored paper in half and then in half, open the inside is a cross crease. Then fold the left and right sides to the center crease, then fold the top and bottom sides to the center line, then unfold the confetti, close the four corners inward, as shown in the picture, and then unfold it after pressing out the crease.

2. Along the four corners of the crease, one by one into a square. After folding, the finished product is shown in the picture. You will need to prepare 4 identical squares.

3. Place one square of paper on top of the other, separated at an angle. As shown in Figure 1. Then first collect the bottom four corners folded up, and then the top 4 corners folded up. Take the top one down. Stick double sided tape on the inside corner edge of one square of paper, peel it off, and press the other one back down, recovering the corners towards the top.

4. Take the other two squares of paper and fold them inward, using the bottom center as a guide. Fold it in half and flatten it out after propping it up.

5. Prepare a square of paper of the same size, fold it in half and cut it into 2 rectangles. Tape the edges and then, against the inside of the cake base, form a circle and cut off the excess.

6. Fold the top and bottom edges to the center by 1cm and glue double-sided tape on top. Use a ballpoint pen to press 0.5cm intervals on the top adhesive, and make marks in turn.

7. Tear off the bottom double-sided tape and stick it on the bottom tray of the cake. Then tear the top double-sided tape, put another folded finished product on it and paste.

8. Stick the bottom of the candle with double-sided tape on the cake.

Such a cupcake is folded. Birthday cakes first originated in the West, and then slowly introduced to China. The earliest cakes were made with a few simple ingredients, and they were symbols of ancient religious myths and miraculous superstitions.